Woodward 723PLUS Technical Manual page 74

723PLUS Digital Marine Control Manual 26482
07 LOAD SHARE GAIN (*0.1–10.0)—This is the gain, expressed as a ratio of
rated speed, that is used to scale the torque sharing error bias signal. This bias
signal is applied to the speed reference to accomplish equal torque sharing.
08 LOAD SHARE FILTER (*0.1–1.0)—This is a low-pass filter which is set to
generate a delay in the torque sharing bias error signal to the speed reference.
Default setting is 0.05. A lower setting will be more responsive but may become
unstable. A higher setting will be more stable but may become unresponsive.
09 REF@TRIP LEVEL TIME (*0.01–60.0)—This setting is the maximum delay
time to wait after an unload command and ramp to the unload trip level is
completed before removing the Clutch Permissive signal to Relay Output #3.
R**TORQUE DEVIATION**
01 TORQUE DEVIATION (*0.1, 50.0)—Set this value to maximum amount of
torque deviation, in percent, allowed between the two engines. Once this amount
is exceeded for the TORQUE DEVIATION TIME and both clutches are closed for
the LOAD SHARE SETTLING TIME, then the load sharing will switch from
Torque Load Sharing to Actuator Fuel Demand Load Sharing and a minor or
major alarm is set, if enabled.
02 TORQUE DEVIATION TIME (*0.01,30.0)—Set this value to the amount of
time, in seconds, that will allow the TORQUE DEVIATION to exceed and the
LOAD SHARING SETTLING TIME, before switching to the Actuator Fuel
Demand Load sharing.
03 LOAD SHARE SETTLING TIME.(*0.01, 30.0)—Set this value to the settling
time of the load share function. This time is dependent upon how fast the soft
load or soft unload feature is.
04 TORQUE DIFFERENTIAL—This value will display the differences in torques,
in percentage, between both engines. Typically this number will read close to
zero when performing the Torque – Torque Load Sharing function.
S**ACT CURRENT DEVIATION**
01 ACT CURRENT DEV (*0.1, 50.0)—Set this value to maximum amount of
actuator fuel demand deviation, in percent, allowed between the two engines
while using the Actuator Fuel Demand Load Sharing. Once this amount is
exceeded for the ACT CURRENT DEVIATION TIME and both clutches are
closed for the LOAD SHARE SETTLING TIME, then the SLAVE unit will issue a
de-clutch command and a minor alarm is set, if enabled.
02 ACT CURR DEV TIME (*0.01,30.0)—Set this value to the amount of time, in
seconds, that will allow the ACT CURRENT DEVIATION to exceed and the
LOAD SHARING SETTLING TIME, before initiating a SLAVE DE-CLUTCH
command.
03 LOAD SHARE SETTLING TIME.(*0.01, 30.0)—Set this value to the settling
time of the load share function. This time is dependent upon how fast the soft
load or soft unload feature is.
04 LSS DIFFERENTIAL—This value will display the differences in actuator fuel
demand, in percentage, between both engines. Typically this number will read a
small difference, due to the calibration of the fuel rack linkages.
64 Woodward